Linking to a Specific Library with C

Question

I have to use the SNAP C-library.

I compiled my file snap_test.c with the following command:

gcc -fopenmp -c -I/home/myName/SNAPDIR/include snap_test.c 

And then linked it with the library:

gcc -fopenmp -o snap_test -L/home/myName/SNAPDIR/lib -lsnap snap_test.o 

But running the program leads to an error:

./snap_test: error while loading shared libraries: libsnap.so.0: cannot open shared object file: No such file or directory

In the lib-dir there are those dirs and files:

libsnap.a  
libsnap.la  
libsnap.so        (dir)
libsnap.so.0      (dir)
libsnap.so.0.0.0

I guess the problem is the different versions of the libraries?!

Answer 1

您需要将/home/myName/SNAPDIR/lib到LD_LIBRARY_PATH 。

$ export LD_LIBRARY_PATH+=:/home/myName/SNAPDIR/lib